Don't you just get annoyed when your ears get used to bass? You buy headphones with strong bass, and in a few weeks, it sounds like it's an ordinary earphone. The bass isn't strong anymore. How do I know that it's the ears that got used to bass? Because I stopped listening to music for a week, and when I listened again, the bass is strong, as if it was new. Then it looses again. *Too long didn't read part, you may skip to the bottom* But I found a solution. It's called the "Equalizer". I boosted the bass. Weeks passed, my ears still got used to bass. So I went full insane over this. The midrange was dramatically lowered to the minimum, and the bass was a lot higher (but not to high to avoid distortion). Surprisingly, I still got used to the strong bass. It's as if I didn't set an equalizer at all. As if it was just flat. The equalizer was at it's limit. Any higher will distort the audio. So I found a solution. Double pass equalizer. An equalizer over an equalizer. So again, bass got boosted. It has a strong bass, and my ears didn't get used anymore. But there's a problem. On my iPhone, you can't have a double pass equalizer, only a single equalizer is possible. Is it just me or does everyone get used to the bass too?